Turbine spinning tongs



Sept. 2, 1930. E. w. KING TURBINE SPINNING TONGS Filed Feb. 4, 1929 \NVan o 152/153 /f//va.

AVOKNEL Patented Sept. 2,193

UNITED STATS ELMER W. KING, OF LONG BEACH, GALIZFGPJNIA, ASSIGNOR TODOROTHY KING, OF LONG BEACH, CALIFORNIA TURBINE $FII-INING TONGSApplication filed February 4, 1929. Serial No. 337,306.

An object of my invention is to provide a spinning tongs which may bequickly and easily secured around a pipe stand to rapidly rotate thepipe and cause it to screw into a collar.

Another object is to provide a spinning tongs operable by a fluid motor,the motor being controlled by an operator at a distance from the pipe.

Still another object is to provide a turbine spinning tongs which isquickly and easily assembled around the pipe to rotate said pipe eitherclock-wise or counter clockwise.

An advantage of my spinning ton is that the pipe or the like can be morequickly assembled or disassembled with a minimum amount of effort andwith little danger to the workman.

Other objects, advantages, and features of invention may appear from theaccompanying drawing, the subjoinecl detailed description, and theappended claims.

In the drawing,

Figure 1 is a plan view of my tongs.

Figure 2 is a fragmentary, longitudinal sectional view of the same.

Referring more particularly to the draw ing, the numeral 1 indicatesalrupper ring and the numeral 2 a lower ring, which rings are held inspaced relation by a plurality of pivotally mounted. dogs 3. Countersunkbolts 4 extend through the rings 1, 2 and through the dogs 3 therebyholding the rings and dogs in proper assembled position. The inner facesof the dogs 3 are toothed or cor rugated so that they will grip thepipe. The teeth on certain of the dogs are tilted so that they willengage the pipe during clock-wise rotation of the rings and others ofthe dogs are toothed so that they will engage the pipe during counterclock-wise rotation of the rings. This arrangement is shown at 5.

A gate 6 is provided in each of the rings 1, 2 and is pivotally mountedon the rings, as at 7. Latches 8 hold the gates in closed positionduring the operation of the tongs. The latch 8 may be of any well-knownconstruction, such as is commonly used upon elevators or similar tools.

The gates 6 are so arranged that when they are swung open the pipe,casing, or the like can readily be moved therethrough and brought intoengagement with the dogs 3. A pair of dogs 9 are mounted between thegates 6 and these dogs bear against the pipe when toe gate is closed.The dogs 3 are urged inwardly by suitable spring means, one type ofspring being shown at 10.

A ring gear 11 is cut on the lower ring 2 by means of which the rings 1,2 are rotated, as will be further described. The rings 1, 2 arerotatably mounted in a head 12 which comprises upper and lower arcuatebearing plates 13, 14: which plates are more than a half circle, andhave ,recesses 13 and 14 respectively, formed therein to receive therings. Anti-friction bearings 15, 16 are provided in the plates 13, 14,respectively, which bear against annular races or ribs formed on therings 1, 2, respectively. Thus itwill be seen that the rings arerotatably mounted and are securely held between the plates 13, 14. Theseplates do not extend entirely around the rings but are arcuate in formso that the pipe or casing can be positioned in the tongs without thenecessity of gates in the plates.

A web 17 extends horizontally from the head 12 and a flange 18 is formedon the rear thereof to which the turbine casing 19 is bolted. In thecasing 19 I provide two fluid turbines one of which rotates clock-wiseand the other counter clock-wise. Pipes 20, 21 extend to these turbinesand fluid. is directed through either of these pipes by the operator whocontrols valves, not shown.

A. shaft 22 extends from the turbines and is journal d in bearings 28, 21 on the web 17. A gear 25 is secured to the forward end of the shaft 22and meshes with the ring gear 11. Thus when either of the turbines areoperated the shaft 22 will be rotated, thus operating the rings 1, 2through the medium of the gears 11, 25. The use and operation of mytongs will be evident from the foregoing description.

Having described my invention, I claim:

1. A pipe spinning tongs comprising a pair of separate spaced rings, aplurality of dogs mounted between said rings and extending inwardly toengage the pipe, a gate in each of said rings, a head in which saidrings are rotatably mounted, and means to rotate said rings, said headcomprising rigid spaced arcuate plates integral therewith and havingarcuate recesses of more than a half circle in their opposed faces, andthe rings having annular ribs to engage said recesses and maintain therings revoluble in said head.

2. A turbine spinning tongs comprising a pair of separate spaced rings,a plurality of dogs mounted between said rings, a gate in each of saidrings, a head in which said rings are rotatably mounted, said headincluding rigid spaced upper and lower plates integral therewith, andhaving arcuate recesses of more than half a circle in their opposedfaces, said rings having annular ribs to engage said recesses andmaintain the rings reroluble in said head, an ti-friction bearings insaid plates against which said rings bear, a ring gear on one of saidrings, a gear meshing with said ring gear, a shaft extending from saidlast named gear, a web extending from said head and integral therewith,said he; d being a. flanged enlargement of the web, said shaft beingjournaled in enlargements on the web, a flange on the web, and a motorsecured to said flange, said motor being connected to the shaft.

In testimony whereot I afiix my signature.

ELMER V. KING.

